Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 1 | /* Shared library add-on to iptables to add IP range matching support. */ |
Jan Engelhardt | 32b8e61 | 2010-07-23 21:16:14 +0200 | [diff] [blame] | 2 | #include <stdbool.h> |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 3 | #include <stdio.h> |
| 4 | #include <netdb.h> |
| 5 | #include <string.h> |
| 6 | #include <stdlib.h> |
| 7 | #include <getopt.h> |
| 8 | |
Thomas Jarosch | 240eee6 | 2008-10-23 15:40:52 +0200 | [diff] [blame] | 9 | #include <netinet/in.h> |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 10 | #include <xtables.h> |
| 11 | #include <linux/netfilter.h> |
| 12 | #include <linux/netfilter/xt_iprange.h> |
Jan Engelhardt | 350661a | 2010-01-31 22:42:52 +0100 | [diff] [blame] | 13 | |
| 14 | struct ipt_iprange { |
| 15 | /* Inclusive: network order. */ |
| 16 | __be32 min_ip, max_ip; |
| 17 | }; |
| 18 | |
| 19 | struct ipt_iprange_info { |
| 20 | struct ipt_iprange src; |
| 21 | struct ipt_iprange dst; |
| 22 | |
| 23 | /* Flags from above */ |
Jan Engelhardt | 7ac4052 | 2011-01-07 12:34:04 +0100 | [diff] [blame] | 24 | uint8_t flags; |
Jan Engelhardt | 350661a | 2010-01-31 22:42:52 +0100 | [diff] [blame] | 25 | }; |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 26 | |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 27 | enum { |
| 28 | F_SRCIP = 1 << 0, |
| 29 | F_DSTIP = 1 << 1, |
| 30 | }; |
| 31 | |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 32 | static void iprange_mt_help(void) |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 33 | { |
| 34 | printf( |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 35 | "iprange match options:\n" |
Jan Engelhardt | a10a12a | 2009-09-18 09:59:26 +0200 | [diff] [blame] | 36 | "[!] --src-range ip[-ip] Match source IP in the specified range\n" |
| 37 | "[!] --dst-range ip[-ip] Match destination IP in the specified range\n"); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 38 | } |
| 39 | |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 40 | static const struct option iprange_mt_opts[] = { |
| 41 | {.name = "src-range", .has_arg = true, .val = '1'}, |
| 42 | {.name = "dst-range", .has_arg = true, .val = '2'}, |
Jan Engelhardt | 32b8e61 | 2010-07-23 21:16:14 +0200 | [diff] [blame] | 43 | XT_GETOPT_TABLEEND, |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 44 | }; |
| 45 | |
Jan Engelhardt | 648a7ba | 2009-09-18 13:01:05 +0200 | [diff] [blame] | 46 | static void |
| 47 | iprange_parse_spec(const char *from, const char *to, union nf_inet_addr *range, |
| 48 | uint8_t family, const char *optname) |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 49 | { |
Jan Engelhardt | 7fa7329 | 2009-09-18 13:07:09 +0200 | [diff] [blame] | 50 | const char *spec[2] = {from, to}; |
Jan Engelhardt | a10a12a | 2009-09-18 09:59:26 +0200 | [diff] [blame] | 51 | struct in6_addr *ia6; |
| 52 | struct in_addr *ia4; |
Jan Engelhardt | 7fa7329 | 2009-09-18 13:07:09 +0200 | [diff] [blame] | 53 | unsigned int i; |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 54 | |
Jan Engelhardt | a10a12a | 2009-09-18 09:59:26 +0200 | [diff] [blame] | 55 | memset(range, 0, sizeof(union nf_inet_addr) * 2); |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 56 | |
Jan Engelhardt | a10a12a | 2009-09-18 09:59:26 +0200 | [diff] [blame] | 57 | if (family == NFPROTO_IPV6) { |
Jan Engelhardt | 7fa7329 | 2009-09-18 13:07:09 +0200 | [diff] [blame] | 58 | for (i = 0; i < ARRAY_SIZE(spec); ++i) { |
| 59 | ia6 = xtables_numeric_to_ip6addr(spec[i]); |
| 60 | if (ia6 == NULL) |
| 61 | xtables_param_act(XTF_BAD_VALUE, "iprange", |
| 62 | optname, spec[i]); |
| 63 | range[i].in6 = *ia6; |
| 64 | } |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 65 | } else { |
Jan Engelhardt | 7fa7329 | 2009-09-18 13:07:09 +0200 | [diff] [blame] | 66 | for (i = 0; i < ARRAY_SIZE(spec); ++i) { |
| 67 | ia4 = xtables_numeric_to_ipaddr(spec[i]); |
| 68 | if (ia4 == NULL) |
| 69 | xtables_param_act(XTF_BAD_VALUE, "iprange", |
| 70 | optname, spec[i]); |
| 71 | range[i].in = *ia4; |
| 72 | } |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 73 | } |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 74 | } |
| 75 | |
Jan Engelhardt | 648a7ba | 2009-09-18 13:01:05 +0200 | [diff] [blame] | 76 | static void iprange_parse_range(char *arg, union nf_inet_addr *range, |
Jan Engelhardt | 7ac4052 | 2011-01-07 12:34:04 +0100 | [diff] [blame] | 77 | uint8_t family, const char *optname) |
Jan Engelhardt | 648a7ba | 2009-09-18 13:01:05 +0200 | [diff] [blame] | 78 | { |
| 79 | char *dash; |
| 80 | |
| 81 | dash = strchr(arg, '-'); |
| 82 | if (dash == NULL) { |
| 83 | iprange_parse_spec(arg, arg, range, family, optname); |
| 84 | return; |
| 85 | } |
| 86 | |
| 87 | *dash = '\0'; |
| 88 | iprange_parse_spec(arg, dash + 1, range, family, optname); |
| 89 | if (memcmp(&range[0], &range[1], sizeof(*range)) > 0) |
| 90 | fprintf(stderr, "xt_iprange: range %s-%s is reversed and " |
| 91 | "will never match\n", arg, dash + 1); |
| 92 | } |
| 93 | |
Jan Engelhardt | 59d1640 | 2007-10-04 16:28:39 +0000 | [diff] [blame] | 94 | static int iprange_parse(int c, char **argv, int invert, unsigned int *flags, |
| 95 | const void *entry, struct xt_entry_match **match) |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 96 | { |
| 97 | struct ipt_iprange_info *info = (struct ipt_iprange_info *)(*match)->data; |
Jan Engelhardt | a10a12a | 2009-09-18 09:59:26 +0200 | [diff] [blame] | 98 | union nf_inet_addr range[2]; |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 99 | |
| 100 | switch (c) { |
| 101 | case '1': |
| 102 | if (*flags & IPRANGE_SRC) |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 103 | xtables_error(PARAMETER_PROBLEM, |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 104 | "iprange match: Only use --src-range ONCE!"); |
| 105 | *flags |= IPRANGE_SRC; |
| 106 | |
| 107 | info->flags |= IPRANGE_SRC; |
Jan Engelhardt | bf97128 | 2009-11-03 19:55:11 +0100 | [diff] [blame] | 108 | xtables_check_inverse(optarg, &invert, &optind, 0, argv); |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 109 | if (invert) |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 110 | info->flags |= IPRANGE_SRC_INV; |
Jan Engelhardt | a10a12a | 2009-09-18 09:59:26 +0200 | [diff] [blame] | 111 | iprange_parse_range(optarg, range, NFPROTO_IPV4, "--src-range"); |
Vincent Bernat | ada4ff6 | 2010-04-21 14:48:26 +0200 | [diff] [blame] | 112 | info->src.min_ip = range[0].ip; |
| 113 | info->src.max_ip = range[1].ip; |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 114 | break; |
| 115 | |
| 116 | case '2': |
| 117 | if (*flags & IPRANGE_DST) |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 118 | xtables_error(PARAMETER_PROBLEM, |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 119 | "iprange match: Only use --dst-range ONCE!"); |
| 120 | *flags |= IPRANGE_DST; |
| 121 | |
| 122 | info->flags |= IPRANGE_DST; |
Jan Engelhardt | bf97128 | 2009-11-03 19:55:11 +0100 | [diff] [blame] | 123 | xtables_check_inverse(optarg, &invert, &optind, 0, argv); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 124 | if (invert) |
| 125 | info->flags |= IPRANGE_DST_INV; |
| 126 | |
Vincent Bernat | ada4ff6 | 2010-04-21 14:48:26 +0200 | [diff] [blame] | 127 | iprange_parse_range(optarg, range, NFPROTO_IPV4, "--dst-range"); |
| 128 | info->dst.min_ip = range[0].ip; |
| 129 | info->dst.max_ip = range[1].ip; |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 130 | break; |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 131 | } |
| 132 | return 1; |
| 133 | } |
| 134 | |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 135 | static int |
| 136 | iprange_mt4_parse(int c, char **argv, int invert, unsigned int *flags, |
| 137 | const void *entry, struct xt_entry_match **match) |
| 138 | { |
| 139 | struct xt_iprange_mtinfo *info = (void *)(*match)->data; |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 140 | |
| 141 | switch (c) { |
Jan Engelhardt | bfb7e0b | 2008-09-01 14:19:03 +0200 | [diff] [blame] | 142 | case '1': /* --src-range */ |
Jan Engelhardt | a10a12a | 2009-09-18 09:59:26 +0200 | [diff] [blame] | 143 | iprange_parse_range(optarg, &info->src_min, NFPROTO_IPV4, |
| 144 | "--src-range"); |
Jan Engelhardt | 6a0cd58 | 2008-06-13 17:59:29 +0200 | [diff] [blame] | 145 | info->flags |= IPRANGE_SRC; |
| 146 | if (invert) |
| 147 | info->flags |= IPRANGE_SRC_INV; |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 148 | *flags |= F_SRCIP; |
| 149 | return true; |
| 150 | |
Jan Engelhardt | bfb7e0b | 2008-09-01 14:19:03 +0200 | [diff] [blame] | 151 | case '2': /* --dst-range */ |
Jan Engelhardt | a10a12a | 2009-09-18 09:59:26 +0200 | [diff] [blame] | 152 | iprange_parse_range(optarg, &info->dst_min, NFPROTO_IPV4, |
| 153 | "--dst-range"); |
Jan Engelhardt | 6a0cd58 | 2008-06-13 17:59:29 +0200 | [diff] [blame] | 154 | info->flags |= IPRANGE_DST; |
| 155 | if (invert) |
| 156 | info->flags |= IPRANGE_DST_INV; |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 157 | *flags |= F_DSTIP; |
| 158 | return true; |
| 159 | } |
| 160 | return false; |
| 161 | } |
| 162 | |
| 163 | static int |
| 164 | iprange_mt6_parse(int c, char **argv, int invert, unsigned int *flags, |
| 165 | const void *entry, struct xt_entry_match **match) |
| 166 | { |
| 167 | struct xt_iprange_mtinfo *info = (void *)(*match)->data; |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 168 | |
| 169 | switch (c) { |
Jan Engelhardt | bfb7e0b | 2008-09-01 14:19:03 +0200 | [diff] [blame] | 170 | case '1': /* --src-range */ |
Jan Engelhardt | a10a12a | 2009-09-18 09:59:26 +0200 | [diff] [blame] | 171 | iprange_parse_range(optarg, &info->src_min, NFPROTO_IPV6, |
| 172 | "--src-range"); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 173 | info->flags |= IPRANGE_SRC; |
| 174 | if (invert) |
| 175 | info->flags |= IPRANGE_SRC_INV; |
| 176 | *flags |= F_SRCIP; |
| 177 | return true; |
| 178 | |
Jan Engelhardt | bfb7e0b | 2008-09-01 14:19:03 +0200 | [diff] [blame] | 179 | case '2': /* --dst-range */ |
Jan Engelhardt | a10a12a | 2009-09-18 09:59:26 +0200 | [diff] [blame] | 180 | iprange_parse_range(optarg, &info->dst_min, NFPROTO_IPV6, |
| 181 | "--dst-range"); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 182 | info->flags |= IPRANGE_DST; |
| 183 | if (invert) |
| 184 | info->flags |= IPRANGE_DST_INV; |
| 185 | *flags |= F_DSTIP; |
| 186 | return true; |
| 187 | } |
| 188 | return false; |
| 189 | } |
| 190 | |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 191 | static void iprange_mt_check(unsigned int flags) |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 192 | { |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 193 | if (flags == 0) |
Jan Engelhardt | 1829ed4 | 2009-02-21 03:29:44 +0100 | [diff] [blame] | 194 | xtables_error(PARAMETER_PROBLEM, |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 195 | "iprange match: You must specify `--src-range' or `--dst-range'"); |
| 196 | } |
| 197 | |
| 198 | static void |
| 199 | print_iprange(const struct ipt_iprange *range) |
| 200 | { |
| 201 | const unsigned char *byte_min, *byte_max; |
| 202 | |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 203 | byte_min = (const unsigned char *)&range->min_ip; |
| 204 | byte_max = (const unsigned char *)&range->max_ip; |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 205 | printf(" %u.%u.%u.%u-%u.%u.%u.%u", |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 206 | byte_min[0], byte_min[1], byte_min[2], byte_min[3], |
| 207 | byte_max[0], byte_max[1], byte_max[2], byte_max[3]); |
| 208 | } |
| 209 | |
Jan Engelhardt | 59d1640 | 2007-10-04 16:28:39 +0000 | [diff] [blame] | 210 | static void iprange_print(const void *ip, const struct xt_entry_match *match, |
| 211 | int numeric) |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 212 | { |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 213 | const struct ipt_iprange_info *info = (const void *)match->data; |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 214 | |
| 215 | if (info->flags & IPRANGE_SRC) { |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 216 | printf(" source IP range"); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 217 | if (info->flags & IPRANGE_SRC_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 218 | printf(" !"); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 219 | print_iprange(&info->src); |
| 220 | } |
| 221 | if (info->flags & IPRANGE_DST) { |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 222 | printf(" destination IP range"); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 223 | if (info->flags & IPRANGE_DST_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 224 | printf(" !"); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 225 | print_iprange(&info->dst); |
| 226 | } |
| 227 | } |
| 228 | |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 229 | static void |
| 230 | iprange_mt4_print(const void *ip, const struct xt_entry_match *match, |
| 231 | int numeric) |
| 232 | { |
| 233 | const struct xt_iprange_mtinfo *info = (const void *)match->data; |
| 234 | |
| 235 | if (info->flags & IPRANGE_SRC) { |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 236 | printf(" source IP range"); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 237 | if (info->flags & IPRANGE_SRC_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 238 | printf(" !"); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 239 | /* |
| 240 | * ipaddr_to_numeric() uses a static buffer, so cannot |
| 241 | * combine the printf() calls. |
| 242 | */ |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 243 | printf(" %s", xtables_ipaddr_to_numeric(&info->src_min.in)); |
| 244 | printf("-%s", xtables_ipaddr_to_numeric(&info->src_max.in)); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 245 | } |
| 246 | if (info->flags & IPRANGE_DST) { |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 247 | printf(" destination IP range"); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 248 | if (info->flags & IPRANGE_DST_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 249 | printf(" !"); |
| 250 | printf(" %s", xtables_ipaddr_to_numeric(&info->dst_min.in)); |
| 251 | printf("-%s", xtables_ipaddr_to_numeric(&info->dst_max.in)); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 252 | } |
| 253 | } |
| 254 | |
| 255 | static void |
| 256 | iprange_mt6_print(const void *ip, const struct xt_entry_match *match, |
| 257 | int numeric) |
| 258 | { |
| 259 | const struct xt_iprange_mtinfo *info = (const void *)match->data; |
| 260 | |
| 261 | if (info->flags & IPRANGE_SRC) { |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 262 | printf(" source IP range"); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 263 | if (info->flags & IPRANGE_SRC_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 264 | printf(" !"); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 265 | /* |
| 266 | * ipaddr_to_numeric() uses a static buffer, so cannot |
| 267 | * combine the printf() calls. |
| 268 | */ |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 269 | printf(" %s", xtables_ip6addr_to_numeric(&info->src_min.in6)); |
| 270 | printf("-%s", xtables_ip6addr_to_numeric(&info->src_max.in6)); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 271 | } |
| 272 | if (info->flags & IPRANGE_DST) { |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 273 | printf(" destination IP range"); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 274 | if (info->flags & IPRANGE_DST_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 275 | printf(" !"); |
| 276 | printf(" %s", xtables_ip6addr_to_numeric(&info->dst_min.in6)); |
| 277 | printf("-%s", xtables_ip6addr_to_numeric(&info->dst_max.in6)); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 278 | } |
| 279 | } |
| 280 | |
Jan Engelhardt | 59d1640 | 2007-10-04 16:28:39 +0000 | [diff] [blame] | 281 | static void iprange_save(const void *ip, const struct xt_entry_match *match) |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 282 | { |
Jan Engelhardt | 41daaa0 | 2008-01-20 13:42:43 +0000 | [diff] [blame] | 283 | const struct ipt_iprange_info *info = (const void *)match->data; |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 284 | |
| 285 | if (info->flags & IPRANGE_SRC) { |
| 286 | if (info->flags & IPRANGE_SRC_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 287 | printf(" !"); |
| 288 | printf(" --src-range"); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 289 | print_iprange(&info->src); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 290 | } |
| 291 | if (info->flags & IPRANGE_DST) { |
| 292 | if (info->flags & IPRANGE_DST_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 293 | printf(" !"); |
| 294 | printf(" --dst-range"); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 295 | print_iprange(&info->dst); |
| 296 | } |
| 297 | } |
| 298 | |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 299 | static void iprange_mt4_save(const void *ip, const struct xt_entry_match *match) |
| 300 | { |
| 301 | const struct xt_iprange_mtinfo *info = (const void *)match->data; |
| 302 | |
| 303 | if (info->flags & IPRANGE_SRC) { |
| 304 | if (info->flags & IPRANGE_SRC_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 305 | printf(" !"); |
| 306 | printf(" --src-range %s", xtables_ipaddr_to_numeric(&info->src_min.in)); |
| 307 | printf("-%s", xtables_ipaddr_to_numeric(&info->src_max.in)); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 308 | } |
| 309 | if (info->flags & IPRANGE_DST) { |
| 310 | if (info->flags & IPRANGE_DST_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 311 | printf(" !"); |
| 312 | printf(" --dst-range %s", xtables_ipaddr_to_numeric(&info->dst_min.in)); |
| 313 | printf("-%s", xtables_ipaddr_to_numeric(&info->dst_max.in)); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 314 | } |
| 315 | } |
| 316 | |
| 317 | static void iprange_mt6_save(const void *ip, const struct xt_entry_match *match) |
| 318 | { |
| 319 | const struct xt_iprange_mtinfo *info = (const void *)match->data; |
| 320 | |
| 321 | if (info->flags & IPRANGE_SRC) { |
| 322 | if (info->flags & IPRANGE_SRC_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 323 | printf(" !"); |
| 324 | printf(" --src-range %s", xtables_ip6addr_to_numeric(&info->src_min.in6)); |
| 325 | printf("-%s", xtables_ip6addr_to_numeric(&info->src_max.in6)); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 326 | } |
| 327 | if (info->flags & IPRANGE_DST) { |
| 328 | if (info->flags & IPRANGE_DST_INV) |
Jan Engelhardt | 7386635 | 2010-12-18 02:04:59 +0100 | [diff] [blame] | 329 | printf(" !"); |
| 330 | printf(" --dst-range %s", xtables_ip6addr_to_numeric(&info->dst_min.in6)); |
| 331 | printf("-%s", xtables_ip6addr_to_numeric(&info->dst_max.in6)); |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 332 | } |
| 333 | } |
| 334 | |
Jan Engelhardt | f2a7752 | 2009-06-25 20:12:12 +0200 | [diff] [blame] | 335 | static struct xtables_match iprange_mt_reg[] = { |
| 336 | { |
| 337 | .version = XTABLES_VERSION, |
| 338 | .name = "iprange", |
| 339 | .revision = 0, |
| 340 | .family = NFPROTO_IPV4, |
| 341 | .size = XT_ALIGN(sizeof(struct ipt_iprange_info)), |
| 342 | .userspacesize = XT_ALIGN(sizeof(struct ipt_iprange_info)), |
| 343 | .help = iprange_mt_help, |
| 344 | .parse = iprange_parse, |
| 345 | .final_check = iprange_mt_check, |
| 346 | .print = iprange_print, |
| 347 | .save = iprange_save, |
| 348 | .extra_opts = iprange_mt_opts, |
| 349 | }, |
| 350 | { |
| 351 | .version = XTABLES_VERSION, |
| 352 | .name = "iprange", |
| 353 | .revision = 1, |
| 354 | .family = NFPROTO_IPV4, |
| 355 | .size = XT_ALIGN(sizeof(struct xt_iprange_mtinfo)), |
| 356 | .userspacesize = XT_ALIGN(sizeof(struct xt_iprange_mtinfo)), |
| 357 | .help = iprange_mt_help, |
| 358 | .parse = iprange_mt4_parse, |
| 359 | .final_check = iprange_mt_check, |
| 360 | .print = iprange_mt4_print, |
| 361 | .save = iprange_mt4_save, |
| 362 | .extra_opts = iprange_mt_opts, |
| 363 | }, |
| 364 | { |
| 365 | .version = XTABLES_VERSION, |
| 366 | .name = "iprange", |
| 367 | .revision = 1, |
| 368 | .family = NFPROTO_IPV6, |
| 369 | .size = XT_ALIGN(sizeof(struct xt_iprange_mtinfo)), |
| 370 | .userspacesize = XT_ALIGN(sizeof(struct xt_iprange_mtinfo)), |
| 371 | .help = iprange_mt_help, |
| 372 | .parse = iprange_mt6_parse, |
| 373 | .final_check = iprange_mt_check, |
| 374 | .print = iprange_mt6_print, |
| 375 | .save = iprange_mt6_save, |
| 376 | .extra_opts = iprange_mt_opts, |
| 377 | }, |
Jan Engelhardt | fc11b0b | 2008-01-20 13:43:49 +0000 | [diff] [blame] | 378 | }; |
| 379 | |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 380 | void _init(void) |
| 381 | { |
Jan Engelhardt | f2a7752 | 2009-06-25 20:12:12 +0200 | [diff] [blame] | 382 | xtables_register_matches(iprange_mt_reg, ARRAY_SIZE(iprange_mt_reg)); |
Joszef Kadlecsik | 9cb6615 | 2003-04-23 13:27:09 +0000 | [diff] [blame] | 383 | } |